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United States Patent | 6,199,833 |
Bilby ,   et al. | March 13, 2001 |
A crowd control barrier including a frame and a base rotatably mounted to the frame and lockable in at least a first position and a second position. The crowd control barrier also includes a pin for securing the base to the frame, the pin being in a first locked position when the base and the frame are locked in the first position, the pin then being rotated into a second locked position so that the base can rotate to the second position, and the pin then being rotated again back to the first locked position when the base and the frame are locked in the second position.
Inventors: | Bilby; Murray (134 Pennoak Dr., Pittsburgh, PA 15235); Reizine; Francois (556 Long Rd., Pittsburgh, PA 15235) |
Appl. No.: | 232363 |
Filed: | January 15, 1999 |
Current U.S. Class: | 256/24; 256/67 |
Intern'l Class: | E04H 017/16 |
Field of Search: | 256/24,26,1,21,25,27,67,73,DIG. 2 |
406053 | Jul., 1889 | Mishler | 256/27. |
5402988 | Apr., 1995 | Eisele | 256/24. |
5863030 | Jan., 1999 | Kotler et al. | 256/24. |
Foreign Patent Documents | |||
444900 | Feb., 1968 | CH | 256/24. |
2551637 | Jun., 1977 | DE | 256/24. |
1296138 | May., 1962 | FR | 256/25. |
2503227 | Apr., 1981 | FR. | |
2625238 | Jun., 1989 | FR | 256/64. |
2063956 | Jun., 1981 | GB | 256/24. |